I have some old patterns similar to these. I also have some more modern ones - not for underwear, though -from the 70s and 80s, often in gaudy colours and very flamboyant.
My mother wrote in her memoirs that she and all the other girls from her office were evacuated in the war and there was.not much to do out in the sticks where they were so they practically bought out all the patterns,yarn, crochet books and knitting needles at the local haberdashery shops and passed the time crocheting and knitting. I suspect the patterns I have date from that era - lacy gloves, bonnets, cheval sets and tablecloths, and even a pair of sandals.
There was a lady on YouTube who made videos of herself interpreting old patterns - some even from the 19th. Century. She was American and the older patterns used the British names for the stitches which she understood well, although many Americans don't. Like recipes of bygone years, the patterns were often vague or unclear and usually without illustrations. In fact she made it more challenging by getting her son to copy them and remove any pictures or headings before she saw them I think she had health problems and hasn't posted for a while but I enjoyed following her thinking and she almost always managed to produce a recognisable piece of work.
Here is one of her videos for anyone who crochet and loves old patterns.
youtu.be/HVLwOft9omM?si=ZR4CRUnLrNkmh-t_